You're in the right to tip based on service. Unfortunately, many gross people treat tipping like dropping a coin in the jukebox: give me the service I want if

You're in the right to tip based on service. Unfortunately, many gross people treat tipping like dropping a coin in the jukebox: give me the service I want if you want this $20 (or whatever). I've seen people yell at or be otherwise disgusting towards service workers and tip >100% as an apology. I've heard of servers/FoH be asked for their phone numbers or to do lewd stuff for outrageous tips. People not receiving tips for the most minor inconveniences happens all of the time. The Morning Show (amazing TV show) actually had an (extremely, but probably believable) example of this as a plot point in one of their episodes during Season 2, I think.